such as air inlet dust removal filters for compressor,Oil filters,water filters,becterium filter,magnet filters, air oil separators,dust filters,high efficiency filters for compressed gas,paper filters,suction filters,  purifier filters,ceramic sintered filters,fibreglass sintered filters,metal-powder sintered filters,plastic-powder sintered filters,HengYou sintered net filters, arenaceous sand filters, water oil separator by agglutination which widely applied to petrol-chem industry,plastic industry,machinery and automobile industry.